Hi,
I am trying to set up an http server on STM32H750B-DK (on STM32CubeIDE) with LwIP. When I program it without implementing FreeRTOS I call the function MX_LWIP_Process in while function in main:
* Function given to help user to continue LwIP Initialization
* Up to user to complete or change this function ...
* Up to user to call this function in main.c in while (1) of main(void)
*-----------------------------------------------------------------------
* Read a received packet from the Ethernet buffers
* Send it to the lwIP stack for handling
* Handle timeouts if LWIP_TIMERS is set and without RTOS
* Handle the llink status if LWIP_NETIF_LINK_CALLBACK is set and without RTOS
*/
void MX_LWIP_Process(void)
{
ethernetif_input(&gnetif);
sys_check_timeouts();
Ethernet_Link_Periodic_Handle(&gnetif);
}
The IP address pings fine and the http server is set up. But when I enable FreeRTOS the declaration of this function does not happen:
#if !WITH_RTOS
/* Function defined in lwip.c to:
* - Read a received packet from the Ethernet buffers
* - Send it to the lwIP stack for handling
* - Handle timeouts if NO_SYS_NO_TIMERS not set
*/
void MX_LWIP_Process(void);
#endif /* WITH_RTOS */
Even if I define it outside the if function it doesn’t work. I guess this should work in another way when working with RTOS. I tried calling http_server_init in StartDefaultTask:
static void http_server(struct netconn *conn)
{
struct netbuf *inbuf;
err_t recv_err;
char* buf;
u16_t buflen;
struct fs_file file;
/* Read the data from the port, blocking if nothing yet there */
recv_err = netconn_recv(conn, &inbuf);
if (recv_err == ERR_OK)
{
if (netconn_err(conn) == ERR_OK)
{
/* Get the data pointer and length of the data inside a netbuf */
netbuf_data(inbuf, (void**)&buf, &buflen);
/* Check if request to get the index.html */
if (strncmp((char const *)buf,"GET /index.html",15)==0)
{
fs_open(&file, "/index.html");
netconn_write(conn, (const unsigned char*)(file.data), (size_t)file.len, NETCONN_NOCOPY);
fs_close(&file);
}
else
{
/* Load Error page */
fs_open(&file, "/404.html");
netconn_write(conn, (const unsigned char*)(file.data), (size_t)file.len, NETCONN_NOCOPY);
fs_close(&file);
}
}
}
/* Close the connection (server closes in HTTP) */
netconn_close(conn);
/* Delete the buffer (netconn_recv gives us ownership,
so we have to make sure to deallocate the buffer) */
netbuf_delete(inbuf);
}
static void http_thread(void *arg)
{
struct netconn *conn, *newconn;
err_t err, accept_err;
/* Create a new TCP connection handle */
conn = netconn_new(NETCONN_TCP);
if (conn!= NULL)
{
/* Bind to port 80 (HTTP) with default IP address */
err = netconn_bind(conn, IP_ADDR_ANY, 80);
if (err == ERR_OK)
{
/* Put the connection into LISTEN state */
netconn_listen(conn);
while(1)
{
/* accept any incoming connection */
accept_err = netconn_accept(conn, &newconn);
if(accept_err == ERR_OK)
{
/* serve connection */
http_server(newconn);
/* delete connection */
netconn_delete(newconn);
}
}
}
}
}
void http_server_init()
{
sys_thread_new("http_thread", http_thread, NULL, DEFAULT_THREAD_STACKSIZE, osPriorityNormal);
}
Still doesn’t work. Can anyone help me?